Home / 13,236.99-18,267.36-7,269.09

Finding the Fourth Proportional to 13,236.99, 18,267.36 and 7,269.09

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Solution

The fourth proportional to 13,236.99, 18,267.36 and 7,269.09 is: 10,031.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236.99 : 18,267.36 = 7,269.09 : x
  2. Step 2: Convert to fraction form
    13,236.99/18,267.36 = 7,269.09/x
  3. Step 3: Cross multiply
    13,236.99x = 18,267.36 × 7,269.09
  4. Step 4: Simplify right side
    13,236.99x = 132,787,083.90
  5. Step 5: Solve for x
    x = 132,787,083.90/13,236.99
  6. Step 6: Final answer
    x = 10,031.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.